Documents / Official release
This U.S. Department of War file collects Project Sign era checklists and incident summary sheets for incidents 101 to 172. The largest item is the 18 February 1948 explosion over Norcatur, Kansas. For it the file gathers witness statements, speculative letters from Norman G. Markham, and Dr. Lincoln LaPaz's view that it was a genuine meteorite fall with curious aspects. Other entries cover B-29 crews, a two-decked wingless object over the Netherlands, a Turkish rocket report, a Moscow sighting, and George Gorman's 1 October 1948 Fargo encounter.
From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 17 July 1945 2. Time 1650 Incident # 146 3. Location Vicinity of San Acacia Dam, 65 miles south of Albuquerque Name of observers M/Sgt Wm R. Carter & M/Sgt Bernard E. Harvey Occupation of observers Carter: Armament technician Harvey: experienced AF non-com 6. Address of observer 428th AFBU Kirtland AF Base 7. Placo of observation Vicinity of San Acacia Dam 8. Number of objects 7 9. Distance of object from observer N/S 10. Timo in sight N/S 11. Altitude 20,000 ft 12. Speed 1,500 MPH (if estimated altitude correct) 13. Direction of flight northerly heading (between north and northwest) Tactics Maintained formation Sound N/S Size N/S 17. Color Color of aluminum aircraft at high altitude 18. Shape When overhead: circular. After passing zenith: indeterminate 19. Odor detected N/S 20. Apparent construction metallic Exhaust trails none 2. Weather conditions CAVU At 20,000 ft wind velocity 8 to 10 miles 23. Effect on clouds N/S 24. Sketches or photographs None 25. Mannor of disappearance In northwest 26. Remarks: (over) CONFIDENTIAL
Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 178 pages are in the text index: search them above, or from the library's search.